Diagnostic instrument



Feb. 6, 1945. Q BOEHM 2,369,010

DIAGNOSTIC INSTRUMENT Filed July 31, 1943 INVENTOR.

BY fa MI Patented Feb. 6, 1945 UMT EJ D STAT Es PAT y I2',369,010 V EDTAGNOSTIC Christian QCQBoehm,Itocheter,.N."Y,,.assignor .to

'Bohm Surgical "Rochester, N. 3L, a

a licants-July s1.

1 *Claim.

Instrument .Corporation,

corporation to! ftNewYork 1943,zSerialiNoadQ'Xfl-fl FMyinventionrelates todiagnostic instruments. I

More particularlywhei invention hasxreference :to

instruments .such as are 'used for :making .ex-

aminations of the 1 cavities 'of .the body.

object of myinventioniistto provide an1ima diagnostic instrument having a light source and a socket or support adapted to interchangeably receive either a speculum or a mirror.

My invention further contemplates the provision of a dual purpose diagnostic instrument adapted to carry with equal convenience for use, either a speculum or a mirror.

Object and advantages of my invention will be set forth in the claim and will be apparent from the following description, when taken in connection with the accompanying drawing, in

which:

Fig. 1 is a view of my novel diagnostic instrument arranged to support a mirror;

Fig. 2 is a view taken substantially on line 22 of Fig. l, in the direction indicated by the arrows;

Fig. 3 is a view showing a difierent type of light source than that illustrated in Fig. 1, with the instrument arranged to support a speculum;

Fig. 4 is a view taken substantially on' the line 4-4 of Fig. 3 in the direction indicated by the arrows.

In the drawing, I have shown a diagnostic instrument comprising a substantially tubular member or support II, the lower end I2 of which is adapted to be received in a socket or holder which comprises a handle for the instrument. The handle and the battery, which is usually contained within the handle in the type of instrument with which this invention is concerned, have not been shown since. they constitute no part of my present invention.

The tubular member I l has,,mounted adjacent the top and extending at an angle with respect to the axis thereof, a tube I3 which carries at the forward end thereof a light source 14. It will be understood that suitable electrical connections are provided between the battery located in the handle and the light source I.

.an "annular :ringsan-d'i'the :upper :endsr of thezarms 26. The split in the ring 22, 23 permits a slight expansion and contraction of the ring so that diagnostic instruments may be carried by the Carried on the rear end of the tube 13 by ring or socket thus, provided. A knurled thumb piece 21 is threaded on the end of a pin which is fastened, as indicated at 28, to the clamping part 24 and extends through the clamping part 26, as shown at 29. By tightening the knurled thumb piece the clamping parts 26, 21 may be set so as to hold a diagnostic instrument, a will be presently described.

The two side edges of the clamping parts 24 and 26 are provided each with an opening 3| and 32, the margins of which are. the arc of a circle so as between them to receivea rod 33. The rod has attached at its forward end a socket 34 adapted to receive a mirror '36. Preferably the mirror is supported so that it center substantially coincides with the axis of the lens l8, as indicated by th dot and dash line 31. Moreover, by loosening the thumb piece 21 the rod 33 may be shifted forwardly or rearwardly to obtain the proper position for best utilization.

In Fig. 3 I have illustrated-a slightly different.

type of diagnostic instrument which is provided with a lens 38, a light source 39, and a viewing lens 4| which maybe similar to the lens l8.

The parts are carried in and by a housing 42 which is, held in position by a set screw 43.

In this type of instrument an ordinary electric light bulb, such as commonly used in flashlights, may be employed. When the set screw is loosened the housing 42 'may be adjusted with respect to the light socket 44 either about the axis thereof or longitudinally with respect thereto. As in the instrument shown in Figs, 1- and 2 a support, comprising the arms [9 and 2|,

is provided and the clamping' ring 22, 23 is also employed.

The clamping ring and the parts thereof are r preferably the same as in the arrangement shown in Figs. 1 and 2. However, in this figure I have shown the clamping ring as supporting a speculum 46 which is provided with an annular ring 4! for reception in the clamping ring or socket.

After the speculum is inserted in the clamping ring the thumb piece 21 may be tightened so as to clamp the speculum firmly in the socket. Then by adjusting the housing 42 the light from the source may be brought into proper relation with openings in the speculum.

It will be noted that the instrument shown in Figs. 3 and 4 is provided with the opening 3|, 32:

for the reception of the rod 33. Thus the diagnostic instrument is made with the dual purpose in view of supporting either a. speculum or a mirror. Thus the functional use of the instrument is increased. The dual purpose instrument of my invention increases the diagnostic scope of the instrument. It will, of course, be'appreciated that the instrument shown in Figs. 1 and 2 may also be employed to support a speculum.

While I have shown the preferred forms of my invention and have indicated how the same instrument may be used for a dual purpose, it will be apparent that various modifications and changes may be made therein, particularly in the form and relation of parts, without departing clamping means extending from said support,

said clamping mean including two arms each of which is the arc of a circle and each of which has a free end with the free ends of the two arms substantially meeting to form substantially a circlethe'plane of which lies at an angle to the axis of the. support, a rod having a mirror substantially at the end thereof with the plane of the mirror atan angle to the rod, means at the free ends of said arms for adjustably clamping said rod to support the mirror in a normally desired'position, said viewing lens having its axis substantially on a line with the center of said mirror when in normal. adjusted position with the line extending through the circular opening formed by said arms and with light source being below said line. I

' CHRISTIAN C. BOEHM. 

